CN102855956A - Copper-coated aluminum alloy composite lead and production technology thereof - Google Patents
Copper-coated aluminum alloy composite lead and production technology thereof Download PDFInfo
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- CN102855956A CN102855956A CN2012103286232A CN201210328623A CN102855956A CN 102855956 A CN102855956 A CN 102855956A CN 2012103286232 A CN2012103286232 A CN 2012103286232A CN 201210328623 A CN201210328623 A CN 201210328623A CN 102855956 A CN102855956 A CN 102855956A
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- copper
- aluminum alloy
- aluminium alloy
- wire bar
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 55
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000010949 copper Substances 0.000 title claims abstract description 49
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 49
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 title abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- 230000032683 aging Effects 0.000 claims abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 238000000137 annealing Methods 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 238000009749 continuous casting Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 239000004020 conductor Substances 0.000 description 9
- 208000023445 Congenital pulmonary airway malformation Diseases 0.000 description 6
- 229910000861 Mg alloy Inorganic materials 0.000 description 6
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 6
- 238000005275 alloying Methods 0.000 description 3
- OWXLRKWPEIAGAT-UHFFFAOYSA-N [Mg].[Cu] Chemical compound [Mg].[Cu] OWXLRKWPEIAGAT-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical group 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Conductive Materials (AREA)
Abstract
The invention relates to a copper-coated aluminum alloy composite lead and a production technology of the copper-coated aluminum alloy composite lead. According to the copper-coated aluminum alloy composite lead provided by the invention, the weight ratio of the copper to the aluminum alloy is 8% to 12%, wherein the aluminum alloy includes Al, Mg, Si, Cu, Mn, Cr, Ti, Fe and Zn; and the production technology comprises the steps of coating a copper layer outside an aluminum alloy lead rod through a coating welding method after horizontal continuous casting, pre-stretching deformation and manual ageing treatment, and then stretching and annealing at a plurality of times. The copper-coated aluminum alloy composite lead provided by the invention has the mechanical property and the electrical conductivity exceeding those of traditional products; and the production technology provided by the invention is simple, and the producing cost of cables is reduced.
Description
Technical field
The invention belongs to laminate metal material Technology of Plastic Processing field, be specifically related to a kind of copper cover aluminum alloy compound wire and production technology thereof.
Background technology
The bimetallic copper-clad aluminum conductor is at the concentric coated copper layer of aluminum core line outer surface, make two kinds of metals form a bulk metal wire rod in the interatomic metallurgical binding of interface formation, the production technology that copper-clad aluminum conductor is commonly used is: almag through melting, continuous casting bar, draw circle, cleaning, coated copper layer, then through rough, draw greatly, intermediate annealing, in draw, intermediate annealing, carefully draw, anneal, get finished product.Copper-clad aluminum conductor has both simultaneously the advantage of copper and two kinds of metals of aluminium, and has reduced the cable production cost under the prerequisite that guarantees signal transmission quality.CCAM is the high-strength products of new generation of releasing on the basis of copper-clad aluminum conductor, is as heart yearn, the concentric coated copper layer of appearance with almag; Electric, the mechanical property of CCAM combines that copper good electric conductivity and aluminum-magnesium alloy wire are lightweight, the advantage of advantages of good shielding performance between copper cash and aluminum-magnesium alloy wire.Compare with copper cash: the proportion of CCAM and pure copper wire is than being 1:2.5, therefore have lightweight, cost-effective huge advantage; Compare with aluminum-magnesium alloy wire, CCAM since the concentric coating in its heart yearn surface one deck fine copper, therefore have with the same solderability of pure copper wire, and needn't as aluminum-magnesium alloy wire, do special processing.Compare with copper-clad aluminum conductor, the series of advantages such as have more light specific gravity, damping and amortization is good, thermal conductivity is good, the electromagnetic shielding ability is strong and vibration damping is good has especially strengthened tensile strength and elongation, and the mechanicalness of this product and applicability are increased dramatically.Yet, no matter be copper cladding aluminum conductor, copper clad aluminum magnesium alloy wire or aluminum-magnesium alloy conductor containing rare earth covering by cuprum, the raising of its intensity realizes by improving the core Magnesium in Aluminium Alloy and increasing cold-drawing deformation, therefore will inevitably cause the decline of conductance when intensity improves.
Summary of the invention
The present invention is directed to above-mentioned deficiency, a kind of copper cover aluminum alloy compound wire and production technology thereof of high-strength high-conductivity is provided.
Copper cover aluminum alloy compound wire provided by the invention, the copper of conductive wire cross-section and the area percentage of aluminium alloy are 8%～12%, wherein the percentage by weight of aluminum alloy chemically composition consists of: 0.2%≤magnesium≤0.6%, 0.1%≤silicon≤0.5%, 0.08%≤iron≤0.25%, 0＜Zn≤0.1%, 0＜copper＜0.05%, 0＜manganese＜0.005%, 0＜titanium＜0.005%, 0＜chromium＜0.005%, surplus are aluminium and a small amount of impurity.
The production technology of copper cover aluminum alloy compound wire provided by the invention, step is as follows:
A. the batching of aluminium alloy wire bar;
B. fusing, electromagnetism refining;
C. horizontal casting;
D. pre-tension deformation, control pre-tension deformation reduction of area is 10～30%, gets pre-tension deformation aluminium alloy wire bar base;
E. artificial aging is processed, and the pre-tension deformation aluminium alloy wire bar base that steps d is obtained carries out the artificial aging processing, and 140～200 ℃ of insulations of temperature 0.5～4 hour get the aluminium alloy wire bar;
F. coated copper layer: adopt the clad welded method, with copper strips clad welded outside the aluminium alloy wire bar that step e obtains, making the copper of compound wire bar base cross section and the area percentage of aluminium alloy is 8%～12%, gets copper cover aluminum alloy compound wire bar base;
G. multi-pass stretches;
H. annealing in process gets finished product.
Copper cover aluminum alloy compound wire provided by the invention, use the aluminium alloy that is formed by a small amount of Mg, Si alloying element, adopt horizontal continuous casting process, the solid solubility of crystal grain thinning and raising alloying element, guarantee the complete solid solution of Mg, Si alloying element, adopt the low temperature deformation Technology for Heating Processing of pre-tension deformation and artificial aging processing, effectively control morphosis and the matrix subgrain pattern of alloy strengthening phase, improve tensile property, mechanical property and the electric conductivity of compound wire, and carry out the regulation and control of performance.Mechanical property and the electric conductivity of copper cover aluminum alloy compound wire of the present invention obviously are better than copper cover aluminum and CCAM, by pre-tension deformation and Ageing Treatment its tensile property, mechanical property and electric conductivity are carried out Effective Regulation in the production process, obtain the copper cover aluminum alloy compound wire of high-strength high-conductivity.Production technology of the present invention is simple, saved the copper resource, reduced cable cost.
Embodiment
According to aluminum alloy chemically composition scope of the present invention, adopt aluminium ingot, electrolysis copper ingot and magnesium ingot and silicon, the iron solvent, press in the product each component form calculate reinforced, in smelting furnace, melt, carry out again the electromagnetism refining: the aluminum alloy melt that obtains through the fusing acclivitous chute with electromagnetic field of flowing through, aluminum alloy melt under electromagnetic force along chute to the upper reaches, impurity in the aluminum alloy melt is subject to aluminium alloy reverse extrusion power and Action of Gravity Field to dirty, aluminum alloy melt is separated with impurity, remove impurity, aluminum alloy melt contacts with the oxygen scavenger of chute inwall under the stirring action of electromagnetic field simultaneously, and oxygen is removed a part in the aluminum alloy melt.Adopt the spectrum direct-read method that chemical composition analysis is carried out in the aluminum alloy melt sampling through the electromagnetism refining, its actual measurement composition sees Table 1.Aluminum alloy melt through the electromagnetism refining adopts the horizontal continuous casting equipment with crystallizer to be cast as round line bar base after insulation is filtered, and will justify the round line bar that the line bar is drawn into certain diameter again, and its pre-tension deformation reduction of area sees Table 2.Then should justify the line bar and carry out the artificial aging processing in the 90KW chamber type electric resistance furnace, the temperature and time that artificial aging is processed sees Table 2.Will be after the surface clean of the round line bar that artificial aging is processed, drying, adopting thickness is the copper strips clad welded of 0.36mm, the copper of the compound wire bar base cross section of each embodiment and the area percentage of aluminium alloy see Table 2, then through rough, in draw, carefully draw and be annealed into the copper cover aluminum alloy composite wire of certain specification (0.12 or 0.1mm).The copper-clad aluminum conductor of each embodiment properties of product data and same size and the performance data of aluminium in copper magnesium line see Table 3.
| Alloy | Fe | Si | Cu | Mg | Mn | Cr | Zn | Ti |
| Fine aluminium | 0.112 | 0.086 | 0.005 | 0.003 | 0.004 | 0.003 | 0.068 | 0.002 |
| The Al-Mg alloy | 0.132 | 0.098 | 0.162 | 0.964 | 0.005 | 0.002 | 0.059 | 0.003 |
| Alloy 1 of the present invention | 0.116 | 0.11 | 0.003 | 0.2 | 0.004 | 0.002 | 0.072 | 0.003 |
| Alloy 2 of the present invention | 0.2 | 0.21 | 0.02 | 0.30 | 0.021 | 0.022 | 0.099 | 0.022 |
| Alloy 3 of the present invention | 0.21 | 0.36 | 0.035 | 0.45 | 0.031 | 0.030 | 0.031 | 0.030 |
| Alloy 4 of the present invention | 0.23 | 0.42 | 0.050 | 0. 50 | 0.049 | 0.048 | 0.001 | 0.048 |
The actual measurement chemical analysis of table 1 aluminium alloy of the present invention and contrast aluminium alloy (percentage by weight, %)
| Embodiment | Al alloy component | The pre-tension deformation reduction of area | Artificial aging treatment temperature, time | The copper of cross section and the area percentage of aluminium alloy |
| 1 | See alloy 1 of the present invention | 10% | 140 ℃, 4 hours | 8% |
| 2 | See alloy 2 of the present invention | 16% | 160 ℃, 3 hours | 10% |
| 3 | See alloy 3 of the present invention | 22% | 180 ℃, 2 hours | 11% |
| 4 | See alloy 4 of the present invention | 30% | 200 ℃, 0.5 hour | 12% |
Each embodiment technological parameter of table 2
| Product | Tensile strength/MPa | Percentage elongation/% | 20 ℃ of resistivity/μ Ω m |
| Copper-clad aluminum conductor | 120 | 8.3 | 27.50 |
| The aluminium in copper magnesium line | 180 | 10.1 | 31.80 |
| Embodiment 1 product | 215 | 13 | 28.33 |
| Embodiment 2 products | 218 | 12．2 | 28.16 |
| Embodiment 3 products | 221 | 12．1 | 28.02 |
| Embodiment 4 products | 223 | 12 | 27.86 |
Table 3 aluminium in copper alloy line of the present invention and contrast product service check result.
As can be seen from Table 3, copper cover aluminum alloy compound wire of the present invention, its mechanical property and electric conductivity obviously are better than existing copper cover aluminum and CCAM.
Claims (2)
1. copper cover aluminum alloy compound wire, the copper of conductive wire cross-section and the area percentage of aluminium alloy are 8%～12%, wherein the percentage by weight of aluminum alloy chemically composition consists of: 0.2%≤magnesium≤0.6%, 0.1%≤silicon≤0.5%, 0.08%≤iron≤0.25%, 0＜Zn≤0.1%, 0＜copper＜0.05%, 0＜manganese＜0.005%, 0＜titanium＜0.005%, 0＜chromium＜0.005%, all the other are aluminium and a small amount of impurity.
2. the production technology of a copper cover aluminum alloy compound wire as claimed in claim 1, step is as follows:
A. the batching of aluminium alloy wire bar;
B. fusing, electromagnetism refining;
C. horizontal casting;
D. pre-tension deformation, control pre-tension deformation reduction of area is 10%～30%, gets pre-tension deformation aluminium alloy wire bar base;
E. artificial aging is processed, and the pre-tension deformation aluminium alloy wire bar base that steps d is obtained carries out the artificial aging processing, and 140～200 ℃ of insulations of temperature 0.5～4 hour get the aluminium alloy wire bar;
F. coated copper layer: adopt the clad welded method, with copper strips clad welded outside the aluminium alloy wire bar that step e obtains, making the copper of compound wire bar base cross section and the area percentage of aluminium alloy is 8%～12%, gets copper cover aluminum alloy compound wire bar base;
G. multi-pass stretches;
H. annealing in process gets finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210328623.2A CN102855956B (en) | 2012-09-07 | 2012-09-07 | Copper-coated aluminum alloy composite lead and production technology thereof |
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|---|---|---|---|
| CN201210328623.2A CN102855956B (en) | 2012-09-07 | 2012-09-07 | Copper-coated aluminum alloy composite lead and production technology thereof |
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| CN102855956A true CN102855956A (en) | 2013-01-02 |
| CN102855956B CN102855956B (en) | 2015-05-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200868A (en) * | 2014-09-06 | 2014-12-10 | 丹阳市明琪金属制品有限公司 | Copper-clad aluminum alloy composite wire and production method thereof |
| CN105632584A (en) * | 2014-12-30 | 2016-06-01 | 吴俊� | Copper-coated aluminum-alloy wire and fabrication method thereof |
| CN106952672A (en) * | 2017-03-13 | 2017-07-14 | 浙江恒久电讯设备制造有限公司 | A kind of height leads CCAM |
| CN107123466A (en) * | 2017-04-27 | 2017-09-01 | 西北有色金属研究院 | A kind of high-strength high conductivity low-density copper-clad titanium composite contact wire and preparation method thereof |
| CN107419147A (en) * | 2017-08-02 | 2017-12-01 | 安徽宜德电子有限公司 | A kind of copper-clad aluminum alloy preparation method of titaniferous |
| CN108565066A (en) * | 2018-01-15 | 2018-09-21 | 赣州西维尔金属材料科技有限公司 | The preparation method of communication equipment semi-flexible cable silver-plated copper coating aluminum alloy inner wire |
| CN112658050A (en) * | 2020-12-24 | 2021-04-16 | 无锡市红年金属制品科技有限公司 | Processing technology of copper-clad aluminum wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200868A (en) * | 2014-09-06 | 2014-12-10 | 丹阳市明琪金属制品有限公司 | Copper-clad aluminum alloy composite wire and production method thereof |
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| CN107123466A (en) * | 2017-04-27 | 2017-09-01 | 西北有色金属研究院 | A kind of high-strength high conductivity low-density copper-clad titanium composite contact wire and preparation method thereof |
| CN107419147A (en) * | 2017-08-02 | 2017-12-01 | 安徽宜德电子有限公司 | A kind of copper-clad aluminum alloy preparation method of titaniferous |
| CN108565066A (en) * | 2018-01-15 | 2018-09-21 | 赣州西维尔金属材料科技有限公司 | The preparation method of communication equipment semi-flexible cable silver-plated copper coating aluminum alloy inner wire |
| CN112658050A (en) * | 2020-12-24 | 2021-04-16 | 无锡市红年金属制品科技有限公司 | Processing technology of copper-clad aluminum wire |
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| CN102855956B (en) | 2015-05-13 |
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Address after: No.888, Section 2, Tengfei Road, Wangcheng economic and Technological Development Zone, Changsha, Hunan 410000 Patentee after: Jinlong Cable Technology Co.,Ltd. Address before: No. 8, Jinxing East Road, Wangcheng Economic Development Zone, Changsha, Hunan 410219 Patentee before: HUNAN C-KINGDOM CABLE CO.,LTD. |
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Denomination of invention: Copper clad aluminum alloy composite wire and its production process Granted publication date: 20150513 Pledgee: Agricultural Bank of China Limited Changsha Wangcheng District sub branch Pledgor: Jinlong Cable Technology Co.,Ltd. Registration number: Y2024980008607 |